Pile boring and facing machine



July 4, 1933. E. D. WATT FILE BORING AND FACING MACHINE Filed June 6,1951 3 Sheets-Sheet 1 YJIN'VENTOR;

BY ATTORNEYS July 4, 1933. v E, D, w 1,916,701

FILE BORING AND FACING MACHINE Filed June 6, 1931 s Sheets-Shegt 2 4HUME; n; '1 j l 5 N W AT7W 3 W'W="N L Wt?! A W :W 1 Q N g n H H a1! o im 5 Eli Wi H m 1 q- WW 1 M 4 I I: o X Al? {if .8 E 5 W A a l o l 8 A *i:i h M JIM" 1 3 M T t x T i i INVENTOR wi %w ATTORNEYJ July 4, 1933. E,D, WATT 1,916,701

FILE BORING AND FACING MACHINE Filed June 6,' 1931 3 Sheets-Sheet 3 BYATTORNEYJ' latented July 4, 1933 i UNITED: STATES PATENT OFFICE ELIHU D.WATT, OF LA GRANGE, ILLINOIS, ASSIGNOR T RAYMOND CONCRETE PILE COMPANY,OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY PILE Bonnie AND FACINGMACHINE Application filed June 6,

are adapted for useas the lower sections of composite piles.

The tenon forming operation is preferably divided into two steps,- eachperformed by a portable machine attached temporarily to the pile onwhich it is to operate. The machine herein disclosed drills a hole inthe centerof the head of thepile and faces the head at right angles'tothe hole. Then the tenon turning machine, disclosed in my copendingapplication, is applied and performs the operation of turning the tenonto proper length and diameter.

In the accompanying drawings which illustrate one embodiment of theinvention:

Fig. 1 shows the machine in cross-section at the completion of its work.

Fig. 2 is a view of the machine from the top of Fig. 1. s

Fig. 3 is a view on line 33 of Fig. 2. Fig.4 is a view on line 4-4 ofFig. 1. Fig. 5 is a detail View on line 5-"5 of Fig. 1 In the drawings10 designates the head of a wooden pile which has been bored at 12 bybit 14 and has been faced on surface 16 by cutters 18 which are held inrotary head 20 by keys 22. Head 20 is keyed to shaft 24 whichpasseshorizontally through the machine, being; supported for rotation byball bearings 26, 28.

The inner race of bearing 28' is mounted directly on shaft 24, the outerrace being clamped between bushing 80 and the hub of handwheel 32. Thehandwheel hub is secured by pins 34 to one end of sleeve 36, and bushing30 is threaded internally in sleeve 86. Sleeve 36 is threaded through abushing 38 which is secured by pins 40 to the casing42 of the machine.

The outer race of bearing 26 is clamped in fixed position between aninner plate 44 and an outer plate 46 which serves as a head or closurefor the machine frame or casing 42, to which it is attached by screws48. The inner race of bearing 26 is mounted on a sleeve 50 in contactwith the hub of a gear 52, the race and hub being clamped to the bushingbe- 1931. Serial No. 542,566.

ofhandwheel 32 will cause shaft 24 to move longitudinally through sleeve50, so that the cutters may be moved to or from thexhead of the pile.

Power for rotating shaft 24 may be supplied in any desired manner, asfor instance by a flexible shaft 64.

Parallel to shaft 24 is the drill shaft 66, supported for rotation byball bearings 68, 70. On the free'end of shaft 66 is a chuck 72 adaptedto hold the shank 74 of bit 14. This shaft is driven from gear 52 onshaft 24, which meshes with gear 76, mounted on spring clutch ring 78,which encircles an enlarged portion of shaft 66 (Figs. 1 and 5). Clutchring 78 is split as at 80 and may be expanded by plunger 82 which isadapted to be forced into space 80 whenever it is desired to cause shaft66 to turn in unison with gear a handle 86, through the instrumentalityof plunger 88 which has a beveled surface 90 in contact with a beveledsurface on plunger 82. l/Vhenever screw 84 is retracted, spring 94retracts plunger 88, and spring ring 78 draws away from gear 76, thuspermitting shaft 66 to come to rest.

For the protection of the operator, head 46 has a skirt 96 surroundingcutter head 20 and its knives 18. For the convenience of the operator inhandling the machine, handles 98, 98 are provided, spaced from the bodyof the machine by arms 100, 100 integral with apron 96, and by arms 102,102 integral with casing 42. The mechanism may be oiled or greasedthrough a fitting 104 tapped into the casing.

In operation with shaft 24 rotating handle 86 is turned to actuateplunger 82 and thereion by force shaft 66 to rotate, as above described.Then, cutter head 20 being retracted by means of wheel 82, the operatorholding the machine by handles 98, applies bit 14 to drill hole 12axially in the pile head until chuck 72 enters the hole and cutterknives 18 are nearly in contact with the pile head. Then shaft 66 isbrought to a standstill by manual rotation of handle 86, and the shaftand chuck are utilized as a support around which the entire machine ismanually rotated, shaft 24 moving in a circular orbit about the supportand being fed longitudinally towards the pile whereby cutter knives 18serve to face the head of the pile to form a circular surface 16 ofgreater diameter than the tenon to be formed. When that operation iscomplete the power is shut off, the bit is removed from the hole, andthe pile is ready for the tenon-turning operation.

It is to be understood that the invention is not limited to the specificembodiment herein illustrated and described, but may be used in otherways without departure from its spirit as defined by the followingclaims.

I claim:

1. In apparatus of the class described, in combination, means comprisinga chuck and a drill bit for drilling a hole in the head of a pile, andmeans for facing said pile head, said drilling means serving to supportsaid facing means and said facing means being adaptedto revolve on itsown axis in an orbit about said drilling means during the facingoperation.

2. In apparatus of the class described, in combination, means comprisinga chuck and a drill bit for drilling a hole in the head of a pile, arotary cutter for facing said pile head, said drilling means serving tosupport said cutter and said cutter being adapted to revolve on its ownaxis in an orbit about said drilling means during the facing operation.

3. The invention set forth in claim 2 in which means is provided forinterconnecting said cutter and said drilling means whereby the devicesmay be operated simultaneously or said cutter may be operated alone. p

4. The invention set forth in claim 2 in which a clutch is provided forinterconnecting said cutter and said drilling means whereby the devicesmay be operated simultaneously or said cutter may be operated,

alone.

In testimony whereof I hereto affix my signature. 1

ELIHU D. WATT.

